Polished slab of sulfide ore from the Wilfley mine. Summit County, Colorado. 1963.
Dates
Date Taken
1963
Summary
Polished slab of sulfide ore from the Wilfley mine, showing banding and graphic texture. Gray is pyrite; black is sphalerite. Summit County, Colorado. Circa 1963. Published in US Geological Survey Professional Paper 652, figure 11. 1971.
Summary
Polished slab of sulfide ore from the Wilfley mine, showing banding and graphic texture. Gray is pyrite; black is sphalerite. Summit County, Colorado. Circa 1963. Published in US Geological Survey Professional Paper 652, figure 11. 1971.
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